(C++) WtOpenQuestionDialog

WtOpenQuestionDialog is a Wt dialog for OpenQuestionDialog.

wtopenquestiondialog.h


//---------------------------------------------------------------------------

/*

WtOpenQuestionDialog, Wt dialog for OpenQuestionDialog

Copyright (C) 2011 Richel Bilderbeek



This program is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.



This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program.If not, see <http://www.gnu.org/licenses/>.

*/

//---------------------------------------------------------------------------

//From http://www.richelbilderbeek.nl/CppWtOpenQuestionDialog.htm

//---------------------------------------------------------------------------

#ifndef WTOPENQUESTIONDIALOG_H

#define WTOPENQUESTIONDIALOG_H

//---------------------------------------------------------------------------

#include <boost/scoped_ptr.hpp>

#include <boost/shared_ptr.hpp>

//---------------------------------------------------------------------------

#include "wtquestiondialog.h"

//---------------------------------------------------------------------------

namespace Wt

{

  struct WLineEdit;

  struct WStackedWidget;

}

//---------------------------------------------------------------------------

struct Question;

struct OpenQuestion;

struct OpenQuestionDialog;

//---------------------------------------------------------------------------

struct WtOpenQuestionDialog : public WtQuestionDialog

{

  WtOpenQuestionDialog(const std::string& question);



  WtOpenQuestionDialog(const boost::shared_ptr<QuestionDialog>& dialog);



  static const std::string GetVersion();

  static const std::vector<std::string> GetVersionHistory();



private:

  //boost::scoped_ptr<OpenQuestionDialog> m_dialog;



  struct Ui

  {

    Ui();

    Wt::WPushButton * const m_button_submit;

    Wt::WLineEdit * const m_edit_answer;

    Wt::WStackedWidget * const m_stacked_widget;

  } ui;



  ///Set the Question

  void SetQuestion(const boost::shared_ptr<Question>& question);



  void OnButtonSubmitClicked();

};

//---------------------------------------------------------------------------

#endif // WTOPENQUESTIONDIALOG_H

wtopenquestiondialog.cpp


//---------------------------------------------------------------------------

/*

QtOpenQuestionDialog, Qt dialog for OpenQuestionDialog

Copyright (C) 2011 Richel Bilderbeek



This program is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.



This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program.If not, see <http://www.gnu.org/licenses/>.

*/

//---------------------------------------------------------------------------

//From http://www.richelbilderbeek.nl/CppQtOpenQuestionDialog.htm

//---------------------------------------------------------------------------

#include <boost/filesystem.hpp>

//---------------------------------------------------------------------------

#include <Wt/WBreak>

#include <Wt/WImage>

#include <Wt/WLabel>

#include <Wt/WLineEdit>

#include <Wt/WPushButton>

#include <Wt/WStackedWidget>

//---------------------------------------------------------------------------

#include "openquestion.h"

#include "openquestiondialog.h"

#include "wtopenquestiondialog.h"

//#include "trace.h"

//---------------------------------------------------------------------------

WtOpenQuestionDialog::Ui::Ui()

  : m_button_submit(new Wt::WPushButton("Submit")),

    m_edit_answer(new Wt::WLineEdit),

    m_stacked_widget(new Wt::WStackedWidget)

{



}

//---------------------------------------------------------------------------

WtOpenQuestionDialog::WtOpenQuestionDialog(const std::string& question)

  : WtQuestionDialog(

     boost::shared_ptr<QuestionDialog>(new OpenQuestionDialog(

       question)))

{

  assert(m_dialog);

  SetQuestion(m_dialog->GetQuestion());

}

//---------------------------------------------------------------------------

WtOpenQuestionDialog::WtOpenQuestionDialog(

  const boost::shared_ptr<QuestionDialog>& dialog)

  : WtQuestionDialog(dialog)

{

  assert(dialog);

  assert(m_dialog);

  SetQuestion(dialog->GetQuestion());

}

//---------------------------------------------------------------------------

const std::string WtOpenQuestionDialog::GetVersion()

{

  return "1.1";

}

//---------------------------------------------------------------------------

const std::vector<std::string> WtOpenQuestionDialog::GetVersionHistory()

{

  std::vector<std::string> v;

  v.push_back("2011-06-29: version 1.0: initial version");

  v.push_back("2011-09-15: version 1.1: created internal Ui struct");

  return v;

}

//---------------------------------------------------------------------------

///Set the Question

void WtOpenQuestionDialog::SetQuestion(

  const boost::shared_ptr<Question>& question)

{

  assert(question);

  assert(m_dialog);



  m_dialog->SetQuestion(question);



  clear();

  setContentAlignment(Wt::AlignCenter);





  if (boost::filesystem::exists(question->GetFilename()))

  {

    this->addWidget(

      new Wt::WImage(question->GetFilename().c_str()));

  }



  const OpenQuestion * const q

    = dynamic_cast<const OpenQuestion *>(question.get());

  assert(q);



  this->addWidget(ui.m_stacked_widget);

  //Create the question page

  {

    Wt::WContainerWidget * const page = new Wt::WContainerWidget;

    page->addWidget(new Wt::WLabel(question->GetQuestion().c_str()));

    page->addWidget(new Wt::WBreak);

    page->addWidget(ui.m_edit_answer);

    page->addWidget(new Wt::WBreak);

    //Button

    page->addWidget(ui.m_button_submit);

    page->addWidget(new Wt::WBreak);

    ui.m_button_submit->clicked().connect(

      this,&WtOpenQuestionDialog::OnButtonSubmitClicked);

    ui.m_stacked_widget->addWidget(page);

  }

  //Create the correct page

  {

    Wt::WContainerWidget * const page = new Wt::WContainerWidget;

    page->addWidget(new Wt::WLabel("Correct"));

    page->addWidget(new Wt::WBreak);

    ui.m_stacked_widget->addWidget(page);

  }

  //Create the incorrect page

  {

    Wt::WContainerWidget * const page = new Wt::WContainerWidget;

    page->addWidget(new Wt::WLabel("Incorrect"));

    page->addWidget(new Wt::WBreak);

    page->addWidget(new Wt::WLabel(question->GetQuestion().c_str()));

    page->addWidget(new Wt::WBreak);

    page->addWidget(new Wt::WLabel(q->GetAnswers()[0].c_str()));

    page->addWidget(new Wt::WBreak);

    ui.m_stacked_widget->addWidget(page);

  }

  ui.m_stacked_widget->setCurrentIndex(0);



}

//---------------------------------------------------------------------------

void WtOpenQuestionDialog::OnButtonSubmitClicked()

{

  assert(m_dialog->CanSubmit());



  m_dialog->Submit(ui.m_edit_answer->text().toUTF8());



  this->ui.m_stacked_widget->setCurrentIndex(m_dialog->IsAnswerCorrect()

    ? 1

    : 2);



  m_signal_submitted();

}

//---------------------------------------------------------------------------

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